qd-changjing/public/static/Build/Documentation/Property.html

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Property
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<h4 class="name" id="Property">
<a href="#Property" class="doc-link"></a>
<span class="type-signature attribute-abstract">abstract</span> new Cesium.Property<span class="signature">()</span>
<div class="source-link rightLinks">
<a href="https://github.com/CesiumGS/cesium/blob/1.91/Source/DataSources/Property.js#L21">DataSources/Property.js 21</a>
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<div class="description">
The interface for all properties, which represent a value that can optionally vary over time.
This type defines an interface and cannot be instantiated directly.
</div>
<dl class="details">
<h5>See:</h5>
<ul class="see-list">
<li><a href="CompositeProperty.html">CompositeProperty</a></li>
<li><a href="ConstantProperty.html">ConstantProperty</a></li>
<li><a href="SampledProperty.html">SampledProperty</a></li>
<li><a href="TimeIntervalCollectionProperty.html">TimeIntervalCollectionProperty</a></li>
<li><a href="MaterialProperty.html">MaterialProperty</a></li>
<li><a href="PositionProperty.html">PositionProperty</a></li>
<li><a href="ReferenceProperty.html">ReferenceProperty</a></li>
</ul>
</dl>
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<h3 class="subsection-title">Members</h3>
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<h4 class="name" id="definitionChanged">
<a href="#definitionChanged" class="doc-link"></a>
<span class="type-signature attribute-readonly">readonly</span> definitionChanged<span class="type-signature"> : <a href="Event.html">Event</a></span>
<div class="source-link rightLinks">
<a href="https://github.com/CesiumGS/cesium/blob/1.91/Source/DataSources/Property.js#L46">DataSources/Property.js 46</a>
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</h4>
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<div class="description">
Gets the event that is raised whenever the definition of this property changes.
The definition is considered to have changed if a call to getValue would return
a different result for the same time.
</div>
<dl class="details">
</dl>
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<h4 class="name" id="isConstant">
<a href="#isConstant" class="doc-link"></a>
<span class="type-signature attribute-readonly">readonly</span> isConstant<span class="type-signature"> : Boolean</span>
<div class="source-link rightLinks">
<a href="https://github.com/CesiumGS/cesium/blob/1.91/Source/DataSources/Property.js#L34">DataSources/Property.js 34</a>
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</h4>
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<div class="description">
Gets a value indicating if this property is constant. A property is considered
constant if getValue always returns the same result for the current definition.
</div>
<dl class="details">
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<h3 class="subsection-title">Methods</h3>
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<h4 class="name" id="equals">
<a href="#equals" class="doc-link"></a>
equals<span class="signature">(<span class="optional">other</span>)</span> &rarr; <span class="type-signature returnType">Boolean</span>
<div class="source-link rightLinks">
<a href="https://github.com/CesiumGS/cesium/blob/1.91/Source/DataSources/Property.js#L69">DataSources/Property.js 69</a>
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</h4>
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<div class="description">
Compares this property to the provided property and returns
<code>true</code> if they are equal, <code>false</code> otherwise.
</div>
<table class="params">
<thead>
<tr>
<th>Name</th>
<th>Type</th>
<th class="last">Description</th>
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<td class="name"><code>other</code></td>
<td class="type">
<span class="param-type"><a href="Property.html">Property</a></span>
</td>
<td class="description last">
<span class="optional">optional</span>
The other property.</td>
</tr>
</tbody>
</table>
<h5>Returns:</h5>
<div class="param-desc">
<code>true</code> if left and right are equal, <code>false</code> otherwise.
</div>
<dl class="details">
</dl>
<div class="nameContainer">
<h4 class="name" id="getValue">
<a href="#getValue" class="doc-link"></a>
getValue<span class="signature">(time, <span class="optional">result</span>)</span> &rarr; <span class="type-signature returnType">Object</span>
<div class="source-link rightLinks">
<a href="https://github.com/CesiumGS/cesium/blob/1.91/Source/DataSources/Property.js#L59">DataSources/Property.js 59</a>
</div>
</h4>
</div>
<div class="description">
Gets the value of the property at the provided time.
</div>
<table class="params">
<thead>
<tr>
<th>Name</th>
<th>Type</th>
<th class="last">Description</th>
</tr>
</thead>
<tbody>
<tr>
<td class="name"><code>time</code></td>
<td class="type">
<span class="param-type"><a href="JulianDate.html">JulianDate</a></span>
</td>
<td class="description last">
The time for which to retrieve the value.</td>
</tr>
<tr>
<td class="name"><code>result</code></td>
<td class="type">
<span class="param-type">Object</span>
</td>
<td class="description last">
<span class="optional">optional</span>
The object to store the value into, if omitted, a new instance is created and returned.</td>
</tr>
</tbody>
</table>
<h5>Returns:</h5>
<div class="param-desc">
The modified result parameter or a new instance if the result parameter was not supplied.
</div>
<dl class="details">
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